fix moms ivar assignment

lib/vool/statements/ivar_statement.rb

@@ -18,7 +18,7 @@ module Vool
     end
 
     def to_mom( method )
-      Mom::SlotConstant.new([:message , :self , @name] , @value)
+      @value.slot_class.new([:message , :self , @name] , @value)
     end
 
   end

test/vool/statements/test_ivar.rb

@@ -21,6 +21,11 @@ module Vool
       assert_equal :foo , lst.name
     end
 
+    def test_const
+      lst = RubyCompiler.compile( "@foo = 5")
+      assert_equal IvarAssignment , lst.class
+    end
+
 
   end
 end

test/vool/to_mom/test_assign.rb

@@ -6,7 +6,7 @@ module Vool
 
     def setup
       Risc.machine.boot
-      @stats = compile_first_method( "arg = 5")
+      @stats = compile_first_method( "local = 5")
       @first = @stats.first
     end
 
@@ -20,10 +20,10 @@ module Vool
       assert_equal :message , @first.left.known_object
     end
     def test_slot_gets_self
-      assert_equal :arguments , @first.left.slots[0]
+      assert_equal :frame , @first.left.slots[0]
     end
     def test_slot_assigns_to_local
-      assert_equal :arg , @first.left.slots[-1]
+      assert_equal :local , @first.left.slots[-1]
     end
     def test_slot_assigns_something
       assert @stats.first.right
@@ -34,20 +34,19 @@ module Vool
   end
 
   #otherwise as above, but assigning instance, so should get a SlotMove
-  class TestAssignMomInstance < MiniTest::Test
+  class TestAssignMomInstanceToLocal < MiniTest::Test
     include MomCompile
     def setup
       Risc.machine.boot
-      @stats = compile_first_method( "arg = @a")
+      @stats = compile_first_method( "local = @a")
     end
-
     def test_class_compiles
       assert_equal Mom::SlotMove , @stats.first.class , @stats
     end
   end
 
   #compiling to an argument should result in different second parameter in the slot array
-  class TestArgMom < MiniTest::Test
+  class TestAssignToArg < MiniTest::Test
     include MomCompile
 
     def setup
@@ -71,11 +70,20 @@ module Vool
     def test_slot_assigns_to_local
       assert_equal :arg , @first.left.slots[-1]
     end
-    def test_slot_assigns_something
-      assert @first.right
+  end
+
+  class TestAssignMomToInstance < MiniTest::Test
+    include MomCompile
+    def setup
+      Risc.machine.boot
     end
-    def test_slot_assigns_int
-      assert_equal IntegerStatement ,  @first.right.class
+    def test_assigns_const
+      @stats = compile_first_method( "@a = 5")
+      assert_equal Mom::SlotConstant , @stats.first.class , @stats
+    end
+    def test_assigns_move
+      @stats = compile_first_method( "@a = arg")
+      assert_equal Mom::SlotMove , @stats.first.class , @stats
     end
   end